<?php
// Staring straight up into the sky ... oh my my
error_reporting ( - 1 );
mb_internal_encoding ( 'utf-8' );

/* Возвращает соответствующую числу форму слова: 1 рубль, 2 рубля, 5 рублей */
function inclineWord($number) {
	$word5 = "";
	$lastDigits = $number % 100;
	$lastDigit = $lastDigits % 10;
	if ($lastDigit == 1 && $lastDigits != 11) {
		$word5 = " рубль";
	}
	if ($lastDigit > 1 && $lastDigit < 5) {
		$word5 = " рубля";
	}
	if ($lastDigit == 0 || ($lastDigits > 10 && $lastDigits < 20) || ($lastDigit > 4 && $lastDigit < 10)) {
		$word5 = " рублей";
	}
	return $word5;
}
/*
 * Преобразует числа от 0 до 999 в текст. Параметр $isFemale равен нулю,
 * если мы считаем число для мужского рода (один рубль),
 * и 1 — для женского (одна тысяча)
 */
function smallNumberToText($number, $isFemale) {
	$spelling = array (
			0 => '',
			10 => 'десять',
			100 => 'сто',
			1 => 'один',
			11 => 'одиннадцать',
			20 => 'двадцать',
			200 => 'двести',
			2 => 'два',
			12 => 'двенадцать',
			30 => 'тридцать',
			300 => 'триста',
			3 => 'три',
			13 => 'тринадцать',
			40 => 'сорок',
			400 => 'четыреста',
			4 => 'четыре',
			14 => 'четырнадцать',
			50 => 'пятьдесят',
			500 => 'пятьсот',
			5 => 'пять',
			15 => 'пятнадцать',
			60 => 'шестьдесят',
			600 => 'шестьсот',
			6 => 'шесть',
			16 => 'шестнадцать',
			70 => 'семьдесят',
			700 => 'семьсот',
			7 => 'семь',
			17 => 'семнадцать',
			80 => 'восемьдесят',
			800 => 'восемьсот',
			8 => 'восемь',
			18 => 'восемнадцать',
			90 => 'девяносто',
			900 => 'девятьсот',
			9 => 'девять',
			19 => 'девятнадцать' 
	);
	$femaleSpelling = array (
			'одна ',
			'две ' 
	);
	$arrNumber = [ ];
	$word = "";
	$arrNumber = preg_split ( "//", $number, - 1, PREG_SPLIT_NO_EMPTY );
	$numberCount = count ( $arrNumber );
	if ($numberCount == 1 && $isFemale == 0) { // обрабатываем 1-9
		$word = $spelling [$arrNumber [0]];
	} else if ($numberCount == 1 && $isFemale == 1) {
		if ($arrNumber [0] == 1) {
			$word = $femaleSpelling [0];
		}
	}
	if ($numberCount == 2 && $isFemale == 0) { // обрабатываем 10-99
		if ($number > 10 && $number < 20) {
			$word = $spelling [$number];
		} else if ($arrNumber [1] == 1 && $isFemale == 0) {
			$word = $spelling [($arrNumber [0] * 10)] . " " . $spelling [$arrNumber [1]];
		} else
			$word = $spelling [($arrNumber [0] * 10)] . " " . $spelling [$arrNumber [1]];
	} else if ($numberCount == 2 && $isFemale == 1) {
		if ($arrNumber [1] == 1) {
			$word = $spelling [($arrNumber [0] * 10)] . " " . $femaleSpelling [0];
		} else
			$word = $spelling [($arrNumber [0] * 10)] . " " . $femaleSpelling [1];
	}
	if ($numberCount == 3 && $isFemale == 0) { // обрабатываем 100-999
		$last = $arrNumber [1] . $arrNumber [2];
		if ($last > 10 && $last < 20) {
			$word = $spelling [($arrNumber [0] * 100)] . " " . $spelling [$last];
		} else
			$word = $spelling [($arrNumber [0] * 100)] . " " . $spelling [$arrNumber [1] * 10] . " " . $spelling [$arrNumber [2]];
	} else if ($numberCount == 3 && $isFemale == 1) {
		$last = $arrNumber [1] . $arrNumber [2];
		if ($arrNumber [2] == 1) {
			$word = $spelling [($arrNumber [0] * 100)] . " " . $spelling [($arrNumber [1] * 10)] . " " . $femaleSpelling [0];
		} else
			$word = $word = $spelling [($arrNumber [0] * 100)] . " " . $spelling [($arrNumber [1] * 10)] . " " . $femaleSpelling [1];
	}
	return $word;
}
function numberToText($number) {
	if ($number == 0) {
		return "ноль (0) рублей";
	}
	
	$thousandSpelling = [ 
			" тысяча ",
			" тысячи ",
			" тысяч " 
	];
	$millionSpelling = [ 
			" миллион ",
			" миллиона ",
			" миллионов " 
	];
	$numberArray = preg_split ( "//", $number, - 1, PREG_SPLIT_NO_EMPTY );
	$numberArrayCount = count ( $numberArray );
	$text = "";
	if ($number < 1000) {
		$text = smallNumberToText ( $number, 0 ) . " ($number)" . inclineWord ( $number );
	}
	if ($numberArrayCount == 4) { // тысячи
		$last = $numberArray [1] . $numberArray [2] . $numberArray [3];
		if ($numberArray [0] == 1) {
			$text = smallNumberToText ( $numberArray [0], 1 ) . $thousandSpelling [0] . smallNumberToText ( $last, 0 ) . " ($number)" . inclineWord ( $last );
		} else if ($numberArray [0] > 1 && $numberArray [0] < 5) {
			$text = smallNumberToText ( $numberArray [0], 1 ) . $thousandSpelling [1] . smallNumberToText ( $last, 0 ) . " ($number)" . inclineWord ( $last );
		} else
			$text = smallNumberToText ( $numberArray [0], 1 ) . $thousandSpelling [2] . smallNumberToText ( $last, 0 ) . " ($number)" . inclineWord ( $last );
	}
	if ($numberArrayCount == 5) { // десятки тысяч
		$first = $numberArray [0] . $numberArray [1];
		$last = $numberArray [2] . $numberArray [3] . $numberArray [4];
		if ($numberArray [1] == 1) {
			$text = smallNumberToText ( $first, 1 ) . $thousandSpelling [0] . smallNumberToText ( $last, 0 ) . " ($number)" . inclineWord ( $last );
		} else if ($numberArray [1] == 2) {
			$text = smallNumberToText ( $first, 1 ) . $thousandSpelling [1] . smallNumberToText ( $last, 0 ) . " ($number)" . inclineWord ( $last );
		} else if ($numberArray [1] > 2 && $numberArray [1] < 5) {
			$text = smallNumberToText ( $first, 0 ) . $thousandSpelling [1] . smallNumberToText ( $last, 0 ) . " ($number)" . inclineWord ( $last );
		} else
			$text = smallNumberToText ( $first, 0 ) . $thousandSpelling [2] . smallNumberToText ( $last, 0 ) . " ($number)" . inclineWord ( $last );
	}
	if ($numberArrayCount == 6) { // сотни тысяч
		$first = $numberArray [0] . $numberArray [1] . $numberArray [2];
		$last = $numberArray [3] . $numberArray [4] . $numberArray [5];
		if ($numberArray [2] == 1) {
			$text = smallNumberToText ( $first, 1 ) . $thousandSpelling [0] . smallNumberToText ( $last, 0 ) . " ($number)" . inclineWord ( $last );
		} else if ($numberArray [2] == 2) {
			$text = smallNumberToText ( $first, 1 ) . $thousandSpelling [1] . smallNumberToText ( $last, 0 ) . " ($number)" . inclineWord ( $last );
		} else if ($numberArray [2] > 2 && $numberArray [2] < 5) {
			$text = smallNumberToText ( $first, 0 ) . $thousandSpelling [1] . smallNumberToText ( $last, 0 ) . " ($number)" . inclineWord ( $last );
		} else
			$text = smallNumberToText ( $first, 0 ) . $thousandSpelling [2] . smallNumberToText ( $last, 0 ) . " ($number)" . inclineWord ( $last );
	}
	if ($numberArrayCount == 7) { // миллионы
		$first = $numberArray [0];
		$middle = $numberArray [1] . $numberArray [2] . $numberArray [3];
		$last = $numberArray [4] . $numberArray [5] . $numberArray [6];
		if ($numberArray [3] == 1) {
			$text = smallNumberToText ( $middle, 1 ) . $thousandSpelling [0] . smallNumberToText ( $last, 0 ) . " ($number)" . inclineWord ( $last );
		} else if ($numberArray [3] == 2) {
			$text = smallNumberToText ( $middle, 1 ) . $thousandSpelling [1] . smallNumberToText ( $last, 0 ) . " ($number)" . inclineWord ( $last );
		} else if ($numberArray [3] > 2 && $numberArray [3] < 5) {
			$text = smallNumberToText ( $middle, 0 ) . $thousandSpelling [1] . smallNumberToText ( $last, 0 ) . " ($number)" . inclineWord ( $last );
		} else
			$text = smallNumberToText ( $middle, 0 ) . $thousandSpelling [2] . smallNumberToText ( $last, 0 ) . " ($number)" . inclineWord ( $last );
		if ($numberArray [0] == 1) {
			$text = smallNumberToText ( $first, 0 ) . " " . $millionSpelling [0] . $text;
		} else if ($numberArray [0] > 1 && $numberArray [0] < 5) {
			$text = smallNumberToText ( $first, 0 ) . " " . $millionSpelling [1] . $text;
		} else
			$text = smallNumberToText ( $first, 0 ) . " " . $millionSpelling [2] . $text;
	}
	if ($numberArrayCount == 8) { // десятки миллионов
		$first = $numberArray [0] . $numberArray [1];
		$middle = $numberArray [2] . $numberArray [3] . $numberArray [4];
		$last = $numberArray [5] . $numberArray [6] . $numberArray [7];
		if ($numberArray [4] == 1) {
			$text = smallNumberToText ( $middle, 1 ) . $thousandSpelling [0] . smallNumberToText ( $last, 0 ) . " ($number)" . inclineWord ( $last );
		} else if ($numberArray [4] == 2) {
			$text = smallNumberToText ( $middle, 1 ) . $thousandSpelling [1] . smallNumberToText ( $last, 0 ) . " ($number)" . inclineWord ( $last );
		} else if ($numberArray [4] > 2 && $numberArray [4] < 5) {
			$text = smallNumberToText ( $middle, 0 ) . $thousandSpelling [1] . smallNumberToText ( $last, 0 ) . " ($number)" . inclineWord ( $last );
		} else
			$text = smallNumberToText ( $middle, 0 ) . $thousandSpelling [2] . smallNumberToText ( $last, 0 ) . " ($number)" . inclineWord ( $last );
		if ($numberArray [1] == 1) {
			$text = smallNumberToText ( $first, 0 ) . " " . $millionSpelling [0] . $text;
		} else if ($numberArray [1] > 1 && $numberArray [1] < 5) {
			$text = smallNumberToText ( $first, 0 ) . " " . $millionSpelling [1] . $text;
		} else
			$text = smallNumberToText ( $first, 0 ) . " " . $millionSpelling [2] . $text;
	}
	$text = preg_replace ( "/ +/", " ", $text );
	return $text;
}

/* Вызовем функцию несколько раз */

$amount1 = mt_rand ( 1, 99999999 );
$text1 = numberToText ( $amount1 );

echo "На вашем счету {$text1}\n";

$amount2 = mt_rand ( 1, 99999999 );
$text2 = numberToText ( $amount2 );

echo "На вашем счету {$text2}\n";

$amount3 = mt_rand ( 1, 99999999 );
$text3 = numberToText ( $amount3 );

echo "На вашем счету {$text3}\n";

$amount4 = mt_rand ( 1, 99999999 );
$text4 = numberToText ( $amount4 );

echo "На вашем счету {$text4}\n";